Arlyn Miller's law practice focuses primarily on estate planning and general business law. Other areas of practice include agriculture law, real estate, probate and trust administration, elder law and appellate work.

While in college, Arlyn interned for Senator Bob Dole in the Senator's Washington, D.C. office. After graduation from Yale University, cum laude, in 1990, Arlyn returned to Washington, D.C. to work for 2 1/2 years as a volunteer through Mennonite Central Committee, doing advocacy work for the National Interreligious Service Board for Conscientious Objectors.

Arlyn then spent several years working on the family farm southwest of Hutchinson, Kansas, before returning to school. While at law school at the University of Kansas, he was a member of the Kansas Journal of Law and Public Policy, and interned for the Honorable Judge Julie Robinson, U.S. District Court for the District of Kansas. In 2004, he received his law degree, and joined the Martindell firm at its Hutchinson office.

In 2007, the book Trends in World Trade: Essays in Honor of Sylvia Ostry was published, which included a chapter by Arlyn titled, "The Rich Shall Inherit the Earth: Understanding the 2002 American Farm Bill."

Arlyn has been active in a number of civic and nonprofit organizations, and has served as Chairman on the Board of Interfaith Housing Services, Inc. He currently serves on the the Board of the Reno County Historical Society.

Arlyn is a member of the American Bar Association, the Kansas Bar Association, and the Reno County Bar Association.